/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.presto.sql.planner.optimizations;

import com.google.common.collect.ImmutableList;

import java.util.LinkedList;
import java.util.List;

public class OptimizerResultCollector
{
    private final List<OptimizerResult> optimizerResults = new LinkedList<>();

    public void addOptimizerResult(String optimizer, String oldNode, String newNode)
    {
        this.optimizerResults.add(new OptimizerResult(optimizer, oldNode, newNode));
    }

    public List<OptimizerResult> getOptimizerResults()
    {
        return ImmutableList.copyOf(optimizerResults);
    }
}
